What is involved in disarming the AFT slides after the Captain's command has been heard?

The correct answer involves a specific sequence of actions that ensure the safety and functionality of the aircraft’s evacuation slides. After the Captain's command to disarm the AFT slides, the individual identified as N2 is responsible for first disarming and physically checking the R2 door. Following this, N2 will proceed to the L2 door to disarm and physically check it as well. This methodical approach ensures that both evacuation slides are properly disarmed and that the doors themselves are secure, preventing any accidental deployment of the slides during taxi, takeoff, or landing.

Moreover, visually confirming that both doors are safe and secure after these actions is essential for maintaining the safety protocols required in aviation. The detailed actions undertaken by N2 emphasize the importance of thoroughness in safety checks and the crucial role of communication and teamwork during emergency procedures.

Other choices lack the necessary detail or procedural rigor. For instance, disarming both slides at once may not allow for proper checks and could lead to oversight. It is also not accurate that all crew members are required to assist in disarming, as specific roles are designated to ensure clarity and efficiency. Finally, simply disarming and leaving the area would not ensure that the necessary checks are done, which are vital for